if you're trying to highlight how concave these wheels are - which to me seems like their biggest selling point - black wheels don't do anything to show that off. i can't see the details of the wheel in any of the pics you've posted.

also, why are the front wheels so flat. yes, i understand that you're running what appears to be a staggered set up, but even then the front wheels seem remarkably non-concave. I'd like to see how concave you can get on a square set up - because the picture of the wheel on your first page, had me drooling.